Category | May

Temporary Overvoltage immunity by Surge Protection Devices

Posted on 02 May 2013

      Effect of temporary overvoltage (TOVs) on surge protective devices (SPDs) If the SPD has been selected with a maximum continuous operating voltage Uc, lower than the overvoltage generated by the low voltage (LV) insulation failures or the loss of a supply conductor, the current flowing through the SPD increases very quickly and [...]

Fiber Optics in Arc Flash Detection Applications

Posted on 02 May 2013

      An arc develops and becomes destructive within milliseconds When failures occur in the electrical disconnect switches, fuses and/or circuit breakers that control, protect and isolate electrical equipment in electrical power systems, also known as switchgear, they can endanger the operation of an entire electrical power system, the equipment using that power and [...]

MnZn Ferrites with High Saturation Flux Density for High Frequency Transformers and Inductors

Posted on 02 May 2013

      MnZn ferrites are widely used in high frequency transformers and inductors. Requirements for ferrite cores used in the electronic components include soft magnetism, easy magnetization with a small external magnetic field, and low loss. By Chong Yan, Yang-zhong Du, Su-ping Wang, Hengdian Group DMEGC Magnetic Limited Company, Dongyang 322118, China Soft magnetic [...]

Predictive Energy Balancing for Agile Control of Switched-Mode Power Converters

Posted on 02 May 2013

      The absence of compensation simplifies development and testing. The number 6 billion turns up often as the number of cell phones in use worldwide. Published estimates average to around 25 power converters per cell phone. If the typical switching frequency is 50 kHz, that works out to 7.5 x 1015 switching decisions [...]

Flexible Development of Energy Harvesting Wireless Solutions

Posted on 30 April 2013

      Compared to wired systems, wireless offers far greater flexibility and convenience in home and building automation, as well as in industrial installations. In particular, batteryless energy harvesting wireless technology scores with no maintenance and a sustainable power supply. That’s an important reason for manufacturers (OEMs) and developers to consider this green technology [...]

State of the Art PE Control Solutions Development

Posted on 30 April 2013

      The development and validation of control algorithms in record time Since 1991 Končar Electrical Engineering Institute (KEEI) Inc. has been involved in development and delivery of embedded power electronics controls solutions to companies within KONČAR Group and for the open market. By Zlatka Tecec Ribaric, Sinisa Marijan, KONČAR Electrical Engineering Institute Inc. [...]

Warehouse Automation in Modern Industrial Production Company

Posted on 30 April 2013

      Proton-Electrotex JSC was founded in 1996 on production basis of Proton company, which earlier was a part of electronic industry department in USSR. The company is growing rapidly and cooperates with manufacturers and suppliers all around the world. Production cycle takes from one up to two and a half months. This process [...]

Compact and Powerful 600V Half Bridge Driver ICs for Consumer Electronics and Home Appliances

Posted on 30 April 2013

      Developers of consumer electronics and home appliances strive continuously for higher efficiency of applications and smaller form factors. One area of interest in power supply design is that the switching behaviour and power losses of new power MOSFETs, such as the latest generations of CoolMOS™ with dramatically reduced gate charges, can be [...]

Innovations in Technology Brings the Thyristor into the 21st Century

Posted on 30 April 2013

      The latest market research reports show an expected annual growth rate of 10 to 12 % for power modules in general. For today’s more recent fashion - the IGBT module, growth is well understood but a more unlikely candidate for a major factor of this growth will be from the often overlooked [...]

MiniSKiiP® Half Bridge Modules and High Power PCBs

Posted on 30 April 2013

      A new approach for cost effective inverters up to 90kW More than 20 million MiniSKiiP® modules can be found in drives and frequency converters across the globe. European inverter manufacturers, in particular, use these modules for low-power applications of up to 30-40kW. Three quarters of these applications are standard drives for pumps, [...]